“I think [Mystique’s] right for [a standalone movie], whether it’s Jennifer [Lawrence] or not,” he said. “Xavier can get into Cerebro and look at the world but he’d rather just teach classes and see the beauty of mutants and humans co-existing in his mansion in Westchester. Along comes Raven with a reality check on the state of the world. It opens up a lot of avenues.”

Lawrence had signed a three-picture deal with the franchise, which expired with the release of "X-Men: Apocalypse," and recently told Entertainment Weekly that she was unsure if she would return for another film.

“Fassbender and McAvoy and I were all talking,” she said of a conversation with her co-stars. “Like, ‘Will you come back?’ ‘I dunno.’ ‘I’ll come back, if you come back.’ Fox should be terrified because the deal we made was like if one of us doesn’t come back, none of us are.”

If Lawrence needed motivation to return, she won't find it from her adorable nephew, Bear. During a recent appearance on "The Tonight Show with Jimmy Fallon," Lawrence spoke about her nephew's refusal to acknowledge her X-Men role.

"He is obsessed with X-Men and I am like, 'Bear, I am an X-Men,' and he's like, 'No, a real X-Men.' It's the most infuriating!" she told Fallon.